Cooling apparatus for internal-combustion engines



S. L. FEKET E. COOLING APPARATUS FOR INTERNAL COMBUSTION ENGINES.

' APPLICATION F IL E D JUNE @1916.

1,338,722. my4,192o.

INVENhJVI -&W&M" by 641M, @NTys- 40 normal operationthe water-in the cylinder I jackets and above the cylinder heads is al-' T altwhosa itmay concern the cylinder jackets. The temperature inthe from the tank 18, and thus to maintain a 100 cylinder jackets is therefore always, except: constant predetermined level in the cylinder =whenthe'engine is being started, that of the head reservoir 13. {The float 24 is movable boiling point of-wa'ter and is uniform. This vertically on the ,valve stem 23. which is I temperature being considerably above that counterbalanced by two weighted levers 2'7 50 heretofore ordinarily employed greatly inand '28 in the manner of the ordinary .float 105 I f NIT D STATES OFFICE.

STEPHENIVAN rnxnrn, or mmmym'cmem, ASSIGNOR, iaY MESNE, ASSIGNMENTS, IQESSEX MOTORS, or nnrnorr, MICHIGAN, A CORPORATION or MICHIGAN.

COOLING nrrmrus FOR inrnnnen comsusriou Enemies.

Be it known' that .I, STEPHEN IVAN FEKETE, a citizen of the United States, resid-v 'ing, at Detroit, county of Wayne, State of of the engi-ne,a-ndother conditions not neccssary to b'ementioned.

My present invention operates on an entirely dilferent principle. The apparatus embodying it is so constructed that-during lowed to boil,;the vapor passing into the ra- I diator andbeingcondensed and returned to creases the fuel economy of the engine.

- Specification of Letters Patent. Application filed June 2, 1916. Serial No. 101,423.

Patented May 4, 1920.

apparatus is also so constructed that when desired it can be converted into a water circulation cooling system, water instead of. steam flowing through'the radiator and conpipe 22 leads from the tank 18, to the cylin; der jackets 12. To control the flow of'water from the tank 18 to the cylinder jackets 12, I provide a valve 23, operated by a float 24, located ina chamber 25*on' the upper end of a stand pipe 26; The level in the float chamber 25 'will be the same as the level in the cylinder head-reservoir 13.-and the float 2% will operate to regulate the flow of water valve of a carbureter. At 33 is shown a 5 Michigan, have invented acertain new and denser. Y 60 useful Improvement in- Cooling Apparatus The apparatus embodying my invention for Internal-Combustion Engines, of which is simple in construction and automatic in the following is a'speciflcation, reference its operation and no moreexpensive to conbeing had therein to the accompanying struct than the ordinary water cooling drawings. system. 65

My invention has for its object a new and My invention will be fully understood improved cooling system for use in internal when taken in connection with the accom;

I combustion engines. For convenience of panying drawings and the novel features illustration I have shown 'myinvention as thereof will be pointed out and clearly de-' 5 applied to the" ordinary automobile engine fined in the claims at the close of this speci- 70 h but it will be understood that it is apfication;

plicable to internal combustion engines to In the drawings, the figure is -a vertical be used for other purposes. Itis'well unsection of the cooling system embodying ,derstood that to obtain the best thermal eflivmy invention as applied to anordinary auciency of an internal combustion engine tomobile engine. 7b

, particularly with fuels containing acon- Referring to the drawing, at 11 is shownsi'derable proportion of the heavier oils, the the engine having water jackets .12, about temperature of the engine must he kept as" the cylinders. The water jacket above the high as possible consistent-with p'roper'lucylinder heads is constructed to form a resbrication. Heretofore, so far as is known to 'ervoir13 which communicates by, a radiator 80 me, the cooling system of internal'combusinlet pipe. 14 with a condenser or radiator tion engines has always been arranged to 15. The radiator or condenser is of ordii circulate water through the radiator and 'nary construction and has afill'cap 32.- The therefore 'the temperature has been kept bottom of the radiator or condenser is con below theboiling point of water. There nected bv an outlet pipe 16, through the 8bhas always beenwide variation in the tempump 17' and pipes 19 and. 35, with a tank perature in the cylinder jackets which has 18, the. effective part of which is above the rangedfrom to 212 degrees Fahr. aclevel of the cylinder head reservoir 13. At cording-to'the design of the cooling system, 21 is afill cap, by meansof which water is the external conditions, the speed and load introduced into the system. A discharge 90 pipe connecting the top of the float chamber 25 with the tank 18,"and at 34 is shown an- "other pipe likewise connecting the float chamber with cylinder head reservoir 13. 11*.

I also makes it possible for the engine to, operatelalways under unvarying temperatureconditions,- re'gar dlessfof changesin' external conditions or of load or"carburetio'n. The

These pipes insure that the pressure in float chamber, the tank 18' and the cylinder head reservoir will always be uniform so that the float will operate properly in spite of sli ht variations in pressure in the system.

.or'convenience, I provide a by-pass 29 which connects the pipe 19 with the pipe 22 entering the latter at a point between the 32, the system can be converted into a water cooling system which will work in the for dinary manner. At 36 is shown a rod leading to the dash board, by which the operator'can move the. three-way valve. At 31 is shown a vent pipe leading upward from the bottomof the radiator to a point abovethe water level, by which in ress or escape of "air a or 'steam 'is' permitted system at atmospheric pressure at all times. Slnce it is always maintained at atmospheric pressure a radiatorand.condenser of "light, frail construction-may be employed;

otherwise such a radiator would be'hurst. by the internal pressure or collapsed by'the' external pressure. The ventnpipe is preferably wavy to insure that any moisture will. condense and run back to-the bottom ref-the radiator.

The operation of the, apparatus embodying my invention is as follows: When the engine is started, the heat generated boils the water in the cylinder jackets 12,. and

the, steam rises into the reservoir 13, thence the steam passes through the radiator inlet pipe 14 into the top of the radiator. Here the steam is condensed and falls in the form of water to the bottom of the radiator. It is'then pumped by the pumpjl't' into .the tank 18. From the tank 18, it is fed into the cylinder jackets 12, by the float valve 23 which admits water just fast enough to compensate for the amount carried over into the radiator in the form of steam.

The vent 31 allows air to enter the system to compensate for the loss of volume due to the condensation of the steam after the engine is stopped; It also permits the air to be forced out by the expansion into steam when the engine is started. The result is that the system is always maintained at atmospheric pressure and therefore the temperature in the cylinder jackets is constant.

In the foregoing description, I have deto maintain the 2. In combination with an internal. combustion engine, a cooling system comprising cylinder jackets, a radiator andcondenser, a circulating pump, a tank, and a by-pass to permit flow of water notthrough the tank whereby the system may be converted from a condensing system into a water circulation cooling system, saidradiator and condenser being of frail constructionand being vented to the atmosphere, so that the. interior thereof will always be at substantially atmospheric pressure."

-3; In combination withan nternal combustion engine, a cooling system comprising cylinder jackets,"a radiator and condenser" vented to the atmosphere, a circulating pmnp, atank, means for, maintaining a constant level of water in the jackets, and a bypass to. permit the flow-,of water not through the tank whereby the system may be con- 've'r'te'd from a condensing system into a w'vater circulation cooling system.

In combination with an internal com v bustlon eng1ne,-a cooling'system comprising cylinder jackets, a radiator and condenser,

a circulating pump, a tank, a float-valve and chamber operatingtogmaintain a constant level'of fluid --in the" cylinder jackets, and

connections from the cylinder jacketsto the float chamberand from the tankto the float chamber to maintain uniform pressure throiwhoutthe systenr;

5. n combination with an internal combustion engine having a water jacket, a

reservoir above the said water jacket means for maintaining constant level of cooling radiator and condenser, said radiator or condenser being partlyabove and partly below fluid in the cylinder jackets'and reservolr, a

In testimony whereof I affix my signature in presence of two witnesses.

STEPHEN IVAN FEKET'E. VVitne'sses:

W. H. Dnnow, C. A. PoPrLns'roNE. 

